<%@ page language="java" pageEncoding="UTF-8" %>
<%
    String formType = request.getParameter("formType");
    String fieldId = request.getParameter("fieldId");
    String fieldValue = request.getParameter("fieldValue");

    if (fieldValue == null) {
        fieldValue = request.getParameter("account");
    }

    System.out.println("formType=" + formType + ", fieldId=" + fieldId + ", fieldValue=" + fieldValue);

    if (fieldValue.equals("Account")) {
        out.print("[\"account\", true]"); // true表示唯一
    } else {
        out.print("[\"account\", false]"); // false非唯一
    }
%>